yaml_range_has_unsupported rejected `&` and `*` anywhere in a plain scalar, with
no positional test at all. So a value containing prose asterisks - `use
*emphasis* here`, a kaomoji, a glob inside a description - was refused as if it
were an alias.
That is one of four constructs that made a real 16 KB hand-maintained Hermes
config permanently un-editable by us (#1631). It is not YAML we cannot model; it
is YAML we declined to read.
An indicator only counts where a NODE begins. The test is now positional and
judged by what PRECEDES the character, because the scanned range covers a whole
line including its key: in `command: &shared` the `&` is an anchor even though
`command:` came first. A node begins at the range start, after a mapping colon,
or after a block-sequence dash. Everything else is text.
`{` and `}` keep their existing treatment. Empty flow mappings (`key: {}`) are
the next item in #1631 and carry their own semantics; bundling them here would
mix a positional correction with a value-semantics change.
Root-caused by @rg6304, who reproduced it in isolation, read this source, and
corrected the maintainer's hypothesis - the constructs I had guessed (inline
comments, anchors, `---` separators) appear nowhere in the failing file.
TESTING NOTE, recorded because it nearly went wrong: the first version of the
regression test put the asterisk in an untouched foreign section and passed with
the fix REVERTED - the editor only validates the range it writes, so the test
proved nothing. Rewritten onto the entry block, it now fails without the fix
(`== -1, expected 0`) and passes with it. The companion test pins the other
direction: a LEADING `*` is still an alias and still refused, byte-identically.
config_yaml_edit + yaml suites: 117 passed, 0 failed.
Signed-off-by: Martin Vogel <martin.vogel.tech@gmail.com>
Martin Vogel
436707f8ff